NEW YORK ( TheStreet) -- Heckmann (NYSE: HEK) is trading at unusually high volume Thursday with 9.9 million shares changing hands. It is currently at four times its average daily volume and trading down 44 cents (-7.8%) at $5.20 as of 3:59 p.m. ET. Heckmann has a market cap of $653.7 million and is part of the financial sector and financial services industry. Shares are down 15.2% year to date as of the close of trading on Wednesday. Heckmann Corporation, together with its subsidiaries, operates as a services-based company focused on total water solutions for shale or 'unconventional' oil and gas exploration. TheStreet Ratings rates Heckmann as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures and impressive record of earnings per share growth. However, as a counter to these strengths, we find that net income has been generally deteriorating over time. You can view the full Heckmann Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.